2007 grand marquis i have no heat only blows cold air
60

Asked by bensa1 Oct 16, 2012 at 07:33 PM about the 2007 Mercury Grand Marquis GS

Question type: Maintenance & Repair

my a/c works, but i have no heat or defrosters. When I need heat i only get cold air

3 Answers
1,865

Mark answered 12 years ago

Does your temp gauge bonce around or stay flat to one point of the scale as well when you try to run the heater?

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Best Answer Mark helpful
60

bensa1 answered 12 years ago

No/ Now I am getting hot air when the air condition is on. but this only happens once and while?

6 people found this helpful.
Mark helpful
1,865

Mark answered 12 years ago

Hmmm could be a sensor in the AC unit control. Also if havn't checked the AC coolant you may have a need to have it serviced an recharged.

Mark helpful

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